(19)

(11)

EP 3 677 068 A1

(12)

(43) Date of publication: 08.07.2020 Bulletin 2020/28 (21) Application number: 19736233.8 (22) Date of filing: 04.01.2019

(51) International Patent Classification (IPC):  H04W 28/04(2009.01) H04W 28/02(2009.01) (86) International application number: PCT/KR2019/000127 (87) International publication number: WO 2019/135626 (11.07.2019 Gazette 2019/28)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 04.01.2018 US 201862613736 P (71) Applicant: LG Electronics Inc. 07336 SEOUL (KR)	(72) Inventors: LEE, Gyeongcheol Seoul 06772 (KR) YI, Seungjune Seoul 06772 (KR) (74) Representative: Plasseraud IP  66, rue de la Chaussée d'Antin 75440 Paris Cedex 09 75440 Paris Cedex 09 (FR)